зеркало из https://github.com/microsoft/clang-1.git
49 строки
1.5 KiB
Plaintext
49 строки
1.5 KiB
Plaintext
// RUN: %clang_cc1 -fsyntax-only -verify -Wno-objc-root-class %s
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typedef const void * VoidStar;
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typedef struct __CFDictionary * CFMDRef;
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void RandomFunc(CFMDRef theDict, const void *key, const void *value);
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@interface Foo
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- (void)_apply:(void (*)(const void *, const void *, void *))func context:(void *)context;
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- (void)a:(id *)objects b:(id *)keys;
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@end
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@implementation Foo
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- (void)_apply:(void (*)(const void *, const void *, void *))func context:(void *)context {
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id item;
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id obj;
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func(item, obj, context);
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}
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- (void)a:(id *)objects b:(id *)keys {
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VoidStar dict;
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id key;
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RandomFunc((CFMDRef)dict, key, objects[3]);
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}
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@end
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@interface I
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- (void) Meth : (I*) Arg; // expected-note{{passing argument to parameter 'Arg' here}}
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@end
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void Func (I* arg); // expected-note {{candidate function not viable: no known conversion from 'const I *' to 'I *' for 1st argument}}
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void foo(const I *p, I* sel) {
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[sel Meth : p]; // expected-error {{cannot initialize a parameter of type 'I *' with an lvalue of type 'const I *'}}
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Func(p); // expected-error {{no matching function for call to 'Func'}}
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}
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@interface DerivedFromI : I
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@end
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void accept_derived(DerivedFromI*);
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void test_base_to_derived(I* i) {
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accept_derived(i); // expected-warning{{incompatible pointer types passing 'I *' to parameter of type 'DerivedFromI *'}}
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DerivedFromI *di = i; // expected-warning{{incompatible pointer types initializing 'DerivedFromI *' with an expression of type 'I *'}}
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DerivedFromI *di2 = (DerivedFromI *)i;
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}
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